The film was announced in October 2014 as Avengers: Infinity War – Part 2. The Russo brothers came on board to direct in April 2015, and by May, Markus and McFeely signed on to script the film. In July 2016, Marvel removed the title, referring to it simply as Untitled Avengers film. Filming began in August 2017 at Pinewood Atlanta Studios in Fayette County, Georgia, shooting back-to-back with Infinity War, and ended in January 2018. Additional filming took place in the Downtown and Metro Atlanta areas and New York. The finalized title was revealed in December 2018.

The film is scheduled for release in the United States on April 26, 2019, in IMAX and 3D.

Chris Evans as Steve Rogers / Captain America:
A fugitive superhero and leader of a faction of Avengers. A World War II veteran, he was enhanced to the peak of human physicality by an experimental serum and frozen in suspended animation before waking up in the modern world.[5] Although the film was beyond Evans’ initial six-film contract with Marvel which would have ended with Avengers: Infinity War, Evans agreed to appear in the film “because it made sense. It’s going to wrap everything up.”[6]

Brie Larson as Carol Danvers / Captain Marvel:
An ex-U.S. Air Force pilot whose DNA was altered during an accident, which imbues her with the powers of superhuman strength, energy projection and flight.[15][16] Screenwriter Christopher Markus stated that Danvers’ powers are on a scale that has not previously existed in the MCU and likened her personality to Rogers’, “which is sort of a person who’s right and knows they’re right and doesn’t really want to hear it when you tell them they’re wrong”.[17]

Josh Brolin as Thanos:
An intergalactic despot from Titan who collected the six Infinity Stones to inflict his will on all of reality.[25][26] Joe Russo said that after the events of Avengers: Infinity War, “[Thanos has] succeeded in the thing he has set out to do. He’s done. He did it. He’s retired.”[27] In addition to providing the voice for the character, Brolin performed motion capture on set.[28]